Portable sign support



FIG. 1 is a perspective view of a portable sign support apparatus showing my new design;

FIG. 2 is another perspective view thereof shown from the opposite side;

FIG. 3 is a side perspective view thereof;

FIG. 4 is another side perspective view thereof, shown from the opposite side;

FIG. 5 is an enlarged side view thereof;

FIG. 6 is another enlarged side perspective view thereof, shown from the opposite side;

FIG. 7 is top perspective view thereof;

FIG. 8 is another enlarged top perspective view thereof; and,

FIG. 9 is another top perspective view thereof.

In the drawings, the broken lines illustrate environment and form no part of the claimed design. 

The ornamental design for a portable sign support, as shown and described. 